Finding the Fourth Proportional to 721,932.13, 996,529.18 and 420,126.13
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Solution
The fourth proportional to 721,932.13, 996,529.18 and 420,126.13 is: 579,927.02
Step by Step Solution
- Step 1: Write the proportion equation
721,932.13 : 996,529.18 = 420,126.13 : x - Step 2: Convert to fraction form
721,932.13/996,529.18 = 420,126.13/x - Step 3: Cross multiply
721,932.13x = 996,529.18 × 420,126.13 - Step 4: Simplify right side
721,932.13x = 418,667,947,825.47 - Step 5: Solve for x
x = 418,667,947,825.47/721,932.13 - Step 6: Final answer
x = 579,927.02
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.